* {
    margin: 0;
    padding: 0;
}

body {
    background: #fff;
}

#output {
    display: block;
    width: 80%;
    margin: 10% auto;
    border: 1px solid #aaa;
}

h1 {
    font-weight: normal;
    text-align: center;
}

button {
    padding: 5px 10px;
    background: #73bedf;
    margin: 5px;
    line-height: 20px;
    border: 0;

    border-radius: 3px;
    cursor: pointer;
}

button:hover {
    background: rgb(111, 111, 211)
}

textarea {
    padding: 5px;
    border-radius: 3px;
}

table {
    width: 80%;
    margin: 0 auto;
    border: 1px solid #aaa;
    table-layout: fixed;
    border-collapse: collapse;
    text-align: center;
}

table td, table th {
    border: 1px solid #aaa;
}

table thead th {
    font-size: 18px;
    font-weight: normal;
    line-height: 30px;
    background-color: #eee;
}

table thead th:first-child {
    width: 50px;
}

table input {
    padding: 5px;
    border: 1px solid #ddd;
    line-height: 22px;
}

body > main {
    padding: 30px;
}

input {
    line-height: 25px;
    padding: 5px;
}

ul, li {
    list-style: none;
}

nav {
    padding: 20px;
    background: #eee;
    margin: 20px;
    font-size: 20px;
}

.input-inline {
    display: inline-block;
    margin: 10px;
}